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機械式壓力開關內部NBR是指丁晴嗎?軸向壓力表內部有橡膠密封嗎? |
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點評
PTFE確實耐絕大多數酸堿鹽等無機物料的腐蝕,耐溫性能也好,但是你這輸送高分子物料,是否與物料發生反應,一定要咨詢專業廠家才可以
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